GetFitGaming Barbell Collar Pair - Billet Aircraft Aluminum Clamp - Fits All 2" Bars Sold in Pairs - Billet Aircraft Grade Aluminum Construction - Superior Grip Over Plastic Collars Innovative design & all new locking mechanism - Superior durability - Fast locking action Fits all 2" olympic bars - Lightweight - Will not damage plates or bars Weight .4 lbs per collar - Made in the USA Perfect for Bodybuilding - Weight Lifting - Power Lifters - Working Out - Crossfit